Nats

STUN Protocol Library provides the Simple Traversal of UDP through NATs Library. STUN Protocol Library, Client and Server implements a simple STUN (Simple Traversal of UDP through NATs) server and client, using the included library. The STUN protocol is described in the IETF RFC 3489,... Platforms: *nix

Miredo is an Unix daemon program which implements the Teredo: Tunneling IPv6 over UDP through NATs Internet draft specification, originally developed by Rémi Denis-Courmont. It can serve either as : - a Teredo client (as Microsoft Windows XP SP2), - a stand-alone Teredo relay (as ng_teredo),... Platforms: *nix

Check Your Network Address Translator for Compatibility with Peer-to-Peer Protocols. If you are accessing the Internet from behind a Network Address Translator (NAT) of some kind, I would appreciate your help in surveying the behavior of different NATs, in terms of how and whether they support a... Platforms: *nix

JSTUN project is a java based STUN (Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translation (NAT)) implementation. STUN provides applications a mean to discover the presence and type of firewalls or NATs between them and the public internet. Additionally, in... Platforms: *nix

Campagnol is a distributed IP-based VPN software able to open new connections through NATs or firewalls without any configuration. It uses UDP for the transport layer and utilizes tunneling and encryption (with DTLS) and the UDP hole punching NAT traversal technique. The established connections... Platforms: *nix

This project implements a simple STUN server and client on Windows, Linux, and Solaris. The STUN protocol (Simple Traversal of UDP through NATs) is described in the IETF RFC 3489, available at http://www.ietf.org/rfc/rfc3489.txt Platforms: Windows, Mac, BSD, Solaris, Linux

Anonymous FTP Daemon (aftpd) is a FTP server for anonymous access is designed for UNIX-like operating system. Concept Typical ftp-server stipulates that each remote user enters the system using their own account. The server creates a separate process to serve each session, and uses system calls... Platforms: *nix